Hi Chris, I'm with an optics vendor, Luma optics. All our optics are field programmable to work in any intended network environment. Regarding your question, its unnecessary to pad a 10km LR, even with such a short reach ( 20m) . If it were an ER or ZR, it would be a different story. Good luck with you project.
Regards, Eric Litvin LumaOptics.net 650 996 7270 Sent from my iPhone > On Oct 19, 2013, at 7:33 PM, Chris Costa <ccosta92...@gmail.com> wrote: > > What are the opinions/views on attenuating short, 1310nm LR cross-connects. > Assume < 20m cable length and utilizing the same vendor optics on each > side of the link. Considering the LR transmit spec doesn't exceed the > receiver's high threshold value do you pad the receiver closer to the > median RX range to avoid potential receiver burnout over time, or just > leave it un-padded? > > Thanks